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from gi.repository import Gtk
from gi.repository import Pango
LONG_TEXT = 'Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam'
class MyLabel(Gtk.Label):
def __init__(self, text, width, rows):
Gtk.Label.__init__(self)
self.set_text(text)
self._width = width
self._height = 100
self._rows = rows
self.set_single_line_mode(False)
self.connect('draw', self._draw)
self.connect('size_allocate', self._size_allocate)
self.set_size_request(self._width, -1)
def _size_allocate(self, label, allocation):
allocation.width = self._width
allocation.height = self._height
self.size_allocate(allocation)
def _draw(self, label, context):
layout = label.get_layout()
layout.set_wrap(Pango.WrapMode.WORD)
layout.set_ellipsize(Pango.EllipsizeMode.END)
layout.set_height(- self._rows)
layout.set_width(self._width * Pango.SCALE)
width, height = layout.get_size()
self._width, self._height = width / Pango.SCALE, height / Pango.SCALE
print self._width, self._height
self.set_size_request(self._width, self._height)
#self.queue_resize()
win = Gtk.Window()
box = Gtk.VBox()
label = MyLabel(LONG_TEXT, 300, 3)
box.add(label)
win.add(box)
win.connect("delete-event", Gtk.main_quit)
win.show_all()
Gtk.main()
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